What is the simplified form of the expression x^8·2y^10·5x5

Aheated piece of metal cools according to the function c(x) = (.5)x ? 7, where x is measured in hours. a device is added that aids in cooling according to the function h(x) = ? x ? 2. what will be the temperature of the metal after two hours?

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Which shows one way to determine the factors of 4x3 + x2 – 8x – 2 by grouping?